<!DOCTYPE html>
<html>
  <head>
    <title>Protocol handler</title>
    <meta content="text/html;charset=utf-8" http-equiv="Content-Type">
    <meta content="utf-8" http-equiv="encoding">
  </head>
  <body>
    <script type="text/javascript">
      navigator.registerProtocolHandler("testprotocol",
          "https://example.com/foobar?uri=%s",
          "Test Protocol");
    </script>
    <a id="link" href="testprotocol:test">testprotocol link</a>
  </body>
</html>
